<template>
  <div id="app">
    <form action="#" v-show="isShow">
      <h1>新增商品</h1>
      <div>
        <label>品牌名称:</label>
        <input type="text" v-model="goodsName" />
      </div>
      <div>
        <label>创立时间:</label>
        <input type="text" v-model="time" />
      </div>
      <div>
        <button @click="submitFn">确定提交</button>
      </div>
    </form>
    <button class="btn" @click="addFn">新增</button>
    <table class="tb">
      <tr>
        <th>编号</th>
        <th>品牌名称</th>
        <th>创立时间</th>
        <th>操作</th>
      </tr>
      <!-- 循环渲染的元素tr -->
      <tr v-for="(item, index) in list" :key="item.id">
        <td>{{ index + 1 }}</td>
        <td>{{ item.name }}</td>
        <td>{{ item.time }}</td>
        <td>
          <button @click="delFn(item.id)">删除</button>
        </td>
      </tr>
      <tr v-if="list.length === 0">
        <td colspan="4">没有数据咯~</td>
      </tr>
    </table>
  </div>
</template>

<script>
export default {
  data() {
    return {
      list: [{ id: 1, name: "奔驰", time: "2020-08-01" }],
      goodsName: "",
      time: "",
      id: 1,
      isShow: false,
    };
  },
  methods: {
    submitFn() {
      this.id++;
      let obj = { id: this.id, name: this.goodsName, time: this.time };
      this.list.push(obj);
      this.isShow = false;
    },
    addFn() {
      this.isShow = true;
      this.goodsName = "";
      this.time = "";
    },
    delFn(id) {
      const index = this.list.findIndex((item) => item.id === id);
      this.list.splice(index, 1);
      // console.log(this.list);
    },
  },
};
</script>

<style>
#app {
  width: 600px;
  margin: 10px auto;
}
.btn {
  border: 1px solid #ccc;
  margin-bottom: 10px;
  margin-top: 40px;
}

.tb {
  border-collapse: collapse;
  width: 100%;
}

.tb th {
  background-color: #0094ff;
  color: white;
}

.tb td,
.tb th {
  padding: 5px;
  border: 1px solid black;
  text-align: center;
}

.add {
  padding: 5px;
  border: 1px solid black;
  margin-bottom: 10px;
}
</style>
